Keyless lock.



A. J. DRAPALIK.

KEYLESS LOCK.

APPLICATION FI'LED MAY 2. I916.

wmm,

PatentedAug. 29,1916.

f J'. DRAJEALIK, OF ROCKY MOUNT, NORTH CAROLINA, ASSIGNOIR OF ONE-HALF 'I'O JOSEPH 1B. HALL, OF ROCKY MOUNT, NORTH CAROLINA.

KEYLESS LOCK;

Specificati Lrs :Patent. Patngnt gdl Aug, 2 19115,,

Application filed May a, 1916. Serial M91967.

To all whom it may concern.-

Be it known that I, ALFRED J. DRAPALIK, residing at Rocky Mount, in the county of Edgecombe and State of North Carolina, have invented certain'new and useful 1m provements in Keyless Locks, of which the following is a specification.

My invention relates to certain new and useful improvements in permutation locks and the invention primarily has for itsobject to provide a lock of this character of a simple and effective construction which cannot be operated byanyone not knowing the required combination.

A further object of the invention is to provide a lock of the type stated in which a very large number of combinations can beobtained so that no two locks need have the same combination, the invention further having for its object to so construct the parts as to make the changing of combinations an easy matter.

Another object of the invention is to provide a permutation lock of the pad lock type, in which a shackle is locked by a plurality of pins which are carried by one of the I shackle legs and when the lock is to be view of the loc opened these pi are designed to be located within the confines of the shackle leg so: that the shackle leg may be endwise moved to unseat the free end of the shackle and whereby the shackle maybe then rotated to the open position, the structure being such that when the shackle is opened, the-locking pins and disks will be held in the unlocked position.

Thednvention also includes those novel details of construction, combination and ar rangement of parts, all of which will be first fully described, then be specifically ointed out in the appended claims, and illustrated in the accompanying drawings,

Figure 1 is a side elevation of a lock constructed in accordance with my invention, the pin operating disks being positioned with the combination set to permit the lock to be o ened. Fig.2 is a central vertical longitu inal section and part elevation, the parts being i Fig. 1. Fig. 3 1s a horizontal-section on the line.33 of Fi 2. Fig. 4 is a bottom plan i. Fig. 5'is .a top plan view of one of the numbered rotatable operating disks: Fig. 6 is aside elevation .of the same.

in the position shown in Fig. 7 is abottom plan view of the disk shown in Fig. 5. Fig. 8 is a top plan View of one of the eccentric pin engaging members. Fig. 9 is a side elevation of the same. F 1g. 10 is a central vertical section of the eccentric disk. Fig. 11 is a planview of one of the notched spacer rings. Fig. 12 is 'a side elevation of the same. Fig. 13 is a (16133.11 pfrspeotive view'of one of the eccentric dis engaging pins.

In the drawings in which like numerals and letters of reference designate like parts in all of the figures, 1 represents the housing of the lock, the same having a portion cut away, as at 2, to expose the pin operating numbered disks, by which the lock may be unlocked or relocked, the housing being provided with a removable cover 3 that is secured in place by set screws 21; the cover 3 and the body 1 having apertures\19'19 in alinement with each other, the aperture 19 receiving the reduced end of the spindle 18 ,on which the operating disks are journaled, the spindle 18 fitting into, a recess 17 in a plug 16 that is secured in the aperture 19 of the cover 3. 1

The body 1 of the lock has a bore 4 in parallelism with the pin 18 and the cover 3 has a bore 6 alining with the bore 4 for the purpose of receiving the body leg 13* of the shackle 13. The shackle 13 has its free end stepped as at 14 to enter the recess 15 in the plug 16 when the parts are'in the locked and closed position (see Figs. 1 and 2). The shackle leg 13 may be pulled upwardly against the resistance of a spring that is located in a pocket 5 in the body. 1 and engages a collar 22 which is recessed at 23 to t over the reduced end of the leg 13? to i which it is secured b a set screw 24L (see Fig. 2). The body 1 1s rovided with a series of parallel bores 7.- which aline with corresponding bores 8 inthe leg 13 of the shackle, when the parts are in the closed position.

' 9 designates a serles of short pin memgaged by locking pins 11 which have squared prO ecting ends 11 to pass through the rec tangular openings 39 in the spacin rings 38 and cooperate with the eccentric isks 33 as will be later explained.

26 designates the combination disks, each of which is of the same construction and consists ofthe head whose periphery is milled at 26 for convenience in turning.

5 The head is also provided with numbers 32 the fiutes corresponding in number to the a number of pin holes in thedisk 26 and the number of digits 3231 on the combi- 2'0 nation disk 26 The eccentrics 33 have operating pin recesses 36-37, the one being diametrically opposite the other, and the one beinglow while the other is high for a purpose presently explained. The notches w-zv at each side of the notch 36, and the notches 'J3 at each-side of the notch 37, are deeper than the respective notches 3637 sothat those notches at wm vI prefer to provide pins 11 of. two lengths, j 40 and 3 y will permit the lock pins to drop 30 deeper and not reach the open position except at the n'otches 36 or :37, 'as'the case may be.

' 35 is a pin on the eccentric 33 to fit into the pin holes 30 whereby the eccentric can be. pinned to the disk 26 in any desired position for purpose of changing the combination as may be found desirable. I

' In the practical construction of the lock one set of pins being long and the other set short (see intermediate pins -11 in Fig, 2 for the long ones and top and bottom pins 11 in Fig. 2 for the short ones). The object of this is to prevent unauthorized opening of the lock, for were the pins of the same length and all designed to open the lock with theeccentrics 33 all in the same position, a person could, in time, find the combination by feeling for it against the resistance of the springs 12, but where the pins 11 are of two lengths, the longer set being designed to reach the opening position when engaging the notch 37 of the respective eccentric 33 and the shorter pins designed to open when they engage the .notches 36 of their corresponding eccentrics 33, one desiring to discover the combination and not knowing which of the pins are the shortones and which are the long ones will be unable to feel for the combination.

If-it is desired to change the combination so that, for instance, the upper disk 26 in Figs. 1 and 2,-will open when .the numeral 1 is adjacent the edge 2 of the body 1 instead of the number 9, it is only necessary to remove the eccentric 32 from that .disk and change the pin 35 from the pin ings, it is thought the complete construc tion, operation and advantages of this invention will be readily understood.

What I claim is:

1. In a combination look, a body and a shackle having a leg rotatably mounted and endwise movable in the body, a plurality of sets of locking pins within the body and leg, permutation devices engaging certain of Said pins and adapted to bring the pins into shackle leg releasing position when said devices are in a predetermined position each of said sets of'locking pins including a pin of a length substantially equal to the diameter of theQshackle leg and another pin for engaging said shackle leg pin and said permutation devices and a third spring actuated pin for engaging the shackle leg pin.

2. In a combination lock, a body and a shackle having a leg rotatably mounted and endwise movable in the body, a plurality of locking pins within the body and leg, 'permutation devices engaging certain of said pins and adapted to bring .the pins into shackle leg releasing position when said devices are in a predetermined position, said permutation devices including combination disks, eccentrics connected with said disks and adapted to engage adjacent pins,

substantially as shown and for the purposes described.

3. In a combination lock, a body and a shackle having a leg rotatably mounted and endwise movable in the body, a plurality of locking pins within the body'and leg, pertures, each of said sets comprising shackle leg pins and a pair of operating pins en- 1,196,218 til,

erating pins in engagement with said permutation devices substantially as shown.

5. In a permutation lock, a body having a shackle leg bore, a shackle rotatably and endwise movable in said bore, said shackle v and said body having ali-ningsets of pin apertures, locking pin sets in said apertures, each of said sets comprising shackle leg pins and operating pins engaging the same, permutation devices mounted in the body and cooperative with said operating pins, means for holding said operating pins in engagement with said permutation devices, said permutation devices including a spindle carried by said body, combination disks rotatableon said spindle there being one disk for each set of pins, eccentrics connected to. said combination disks to turn with the same and cooperatively engage the respective operating pins and rings located between adjacent combination disks to inclose the respective eccentrics substantially as shown and described.

6. In a permutation look, a body having a shackle leg bore, ashackle rotatably and, endwise movable in said bore, said shackle and said body having alining sets of pin apertures, locking pin sets in said apertures, each of said sets comprising shackle leg pins and operating pins engaging the same, permutation devices mounted in the body and cooperative with said operating,

pins, means for holding said operating pins in engagement ith said permutation devices, said perm tation devices including a spindle carried by said body, combination disks rotatable on said spindle there being one disk for each set of plus, eccentrics connected to said combination disks to turn with the same and cooperatively engage the respective operating pins, rings located between adjacent combination disks to inclose the respective eccentrics, means for holding said rings against rotation;

7. In a permutation look, a body having a shackle leg bore, a shackle rotatably and endwise movable in said bore, said shackle and said body having alining sets of. pin apertures, locking pin sets in said apertures, each'of said sets comprising shackle leg pins and operating pins engaging the same, permutation devices mounted in the body and cooperative with said operating pins, means for holding said operating pins in engagement with said permutation devices, vsaid permutation devices including a spindle, carried by said body, combina tion disks rotatable on said spindle there being one disk for each set of pins, eccentrics connected to said combination disks to turn with the same and cooperatively engage the. respective operating pins, rings located between adjacent combination disks to inclose the respective eccentrics, said combination disks having sleeves and said eccentrics having bores to fit on said sleeves, and means for adjustably securing said eccentrics tov their respective combination disks.

8. In-a permutation look, 'a body having a shackle leg bore, a shackle rotatably and endwise movable in said bore, said shackle and said body having alining sets of pin apertures, locking pin sets in said apertures, each of said sets comprising shackle leg pins and operating pins engaging the same, permutation devices mounted in they body and cooperative with said operating pins, means for holding said operating pins in engagement with said permutation devices, said permutation devices including a spindle carried by said body, combination disks rotatable on said spindle, there being one disk for each set of pins, eccentrics connected to said combination disks to turn with the same and cooperatively engage the respective operating pins, rings located between adjacent combination disks to inclose the respective eccentrics, said combination disks having sleeves, said eccentrics having bores to fit on said sleeves, means for adjustably securing said eccentrics to their respective combination disks, said last named means comprising pin and pin hole connections, there being a plurality of pin holes provided -for purposes of chang ing the combination, said combination disks having their peripheries numbered to correspond with the number of pin holes.

ALFRED J DRAPALIK. 

